The New Science of Exobiology Gone are the days when the search for life beyond Earth was confined to science fiction movies ...

The search for extraterrestrial life has evolved from philosophy to a serious scientific and national security concern ...

For years, scientists across the world have searched for the signs of life beyond our home planet in two main ways. They have either looked for signs of biology on other worlds, known as biosignatures ...

Astrobiology—the study of life in the universe, from how it began and evolved to how it might take shape elsewhere—is the ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

English science fiction writer Arthur C. Clarke once said, “Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” It’s a line that has motivated ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...

Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature Astronomy, researchers discuss the consequences of these so-called ...

The universe is vast and teeming with stars – but if intelligent life exists, it may not be able to visit Earth. By Kai James / The Conversation Published May 27, 2026 8:00 AM EDT This article was ...

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